LM5140-Q1 - Texas Instruments

LM5140-Q1 Wide Input Range Dual Synchronous Buck Controller

The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN stepdown converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation. The LM5140-Q1 features adjustable slew rate control to simplify com.

Features

•1 Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following
  – Device Temperature Grade 1:
  –40ºC to +125ºC Ambient Operating Temperature
  – Device HBM ESD Classification Level 2
  – Device CDM ESD Classification Level C4B
• Input Operating Range from 3.8 V to 65 V (70 V Absolute Maximum)
• Two Interleaved Buck Controllers With:
  – VOUT1 Fixed 3.3 V, 5 V, or Adjustable from 1.5 V
  – 15 V, Accuracy ±1%
  – VOUT2 Fixed 5 V, 8 V, or Adjustable from 1.5 V
  – 15 V, Accuracy ±1%
• Fixed 2.2-MHz or 440-kHz Switching Frequency, Accuracy ±7%
• Optional Synchronization to an External Cloc.